fix: restore __hash__ on OOFieldInfo to prevent TypeError in typing m…

[simontaurus]

…odule

OOFieldInfo overrides eq for query building, which makes Python set hash = None. This breaks third-party libraries (e.g. prefect) that process Union/Annotated types containing FieldInfo metadata, since typing needs to hash them. Restore id()-based hashing matching the original object.hash behavior.

[github-actions]

📊 Benchmark Results

Click to see benchmark comparison

📊 Benchmark Comparison (threshold: 1.3x)
============================================================

⚠️  Performance Regressions:
  ❌ test_enum_docstrings: 0.0465s → 0.0618s (+32.8%, ratio: 1.33x)

➖ Unchanged (within threshold):
  ➖ test_simple_dict_document_store: 0.0015s → 0.0015s (+1.3%)
  ➖ test_sqlite_document_store: 0.0030s → 0.0031s (+2.5%)
  ➖ test_local_sparql_store: 0.0374s → 0.0372s (-0.6%)
  ➖ test_oneof_subschema: 0.0514s → 0.0516s (+0.5%)
  ➖ test_subclass_inheritance: 0.0455s → 0.0463s (+1.6%)
  ➖ test_class_hierarchy: 0.0436s → 0.0491s (+12.7%)
  ➖ test_core[v1]: 0.0325s → 0.0370s (+13.9%)
  ➖ test_core[v2]: 0.0442s → 0.0413s (-6.5%)
  ➖ test_schema_generation[v1]: 0.0016s → 0.0019s (+15.5%)
  ➖ test_schema_generation[v2]: 0.0029s → 0.0029s (+1.9%)

============================================================
Summary: 1 regressions, 0 improvements, 10 unchanged
============================================================

⚠️  Regressions detected but not failing build (informational only)

Threshold: 1.3x (30% slower triggers a regression warning)

Note: Benchmarks are informational only and won't fail the build.

_{💡 Tip: Download the benchmark-results artifact for detailed JSON data}

[github-actions]

📊 Benchmark Results

Click to see benchmark comparison

📊 Benchmark Comparison (threshold: 1.3x)
============================================================

⚠️  New benchmark: test_simple_json
⚠️  New benchmark: test_complex_graph
⚠️  Performance Regressions:
  ❌ test_enum_docstrings: 0.0500s → 0.0770s (+54.0%, ratio: 1.54x)

➖ Unchanged (within threshold):
  ➖ test_simple_dict_document_store: 0.0015s → 0.0015s (+1.6%)
  ➖ test_sqlite_document_store: 0.0029s → 0.0032s (+6.9%)
  ➖ test_local_sparql_store: 0.0376s → 0.0373s (-0.9%)
  ➖ test_oneof_subschema: 0.0553s → 0.0557s (+0.9%)
  ➖ test_subclass_inheritance: 0.0519s → 0.0570s (+9.8%)
  ➖ test_class_hierarchy: 0.0446s → 0.0544s (+21.8%)
  ➖ test_core[v1]: 0.0372s → 0.0352s (-5.4%)
  ➖ test_core[v2]: 0.0420s → 0.0468s (+11.5%)
  ➖ test_schema_generation[v1]: 0.0017s → 0.0017s (+1.9%)
  ➖ test_schema_generation[v2]: 0.0033s → 0.0030s (-11.1%)

============================================================
Summary: 1 regressions, 0 improvements, 10 unchanged
============================================================

⚠️  Regressions detected but not failing build (informational only)

Threshold: 1.3x (30% slower triggers a regression warning)

Note: Benchmarks are informational only and won't fail the build.

_{💡 Tip: Download the benchmark-results artifact for detailed JSON data}